Bump psutil from 5.2.2 to 5.6.6 in /utils (#5)

Bumps [psutil](https://github.com/giampaolo/psutil) from 5.2.2 to 5.6.6.
- [Release notes](https://github.com/giampaolo/psutil/releases)
- [Changelog](https://github.com/giampaolo/psutil/blob/master/HISTORY.rst)
- [Commits](giampaolo/psutil@release-5.2.2...release-5.6.6)

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Author: dependabot[bot]

utils/requirements.txt

@@ -1,7 +1,7 @@
 h5py==2.8.0rc1
 numpy==1.22.0
 Pillow==4.1.1
-psutil==5.2.2
+psutil==5.6.6
 scikit-learn==0.19.1
 six==1.11.0
 tensorflow==1.12.2